Based on a nationwide survey, this article addresses the contribution of micro and small enterprises (MSEs) to employment, national income, and household income in Kenya. One-third of all working persons are employed in MSEs and the sector contributes 13% to national income. Despite their large contribution as a whole, returns to individual MSEs vary tremendously. Among those MSEs that represent the sole source of income for the household, 72% make less than the absolute poverty line in urban areas and none of the MSEs in rural areas make above the absolute poverty line. Comparing hourly MSE returns to average earnings in the private sector, the majority make below the average earnings while a minority make significantly higher earnings.